Статья

Promotion of hydrogen evolution from seawater via poly(aniline-co-4-nitroaniline) combined with 3D nickel nanoparticles

Saleh Moradi‐AlavianElectrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, IranAmir KazempourElectrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, IranMeysam Mirzaei-SaatloElectrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, IranHabib Ashassi‐SorkhabiElectrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, IranAbbas MehrdadDepartment of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, IranElnaz AsghariElectrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran. [email protected]Jacob J. LambDepartment of Energy and Process Engineering & ENERSENSE, Norwegian University of Science and Technology (NTNU), NO-7491, Trondheim, NorwayBruno G. PolletGreen Hydrogen Lab, Institute for Hydrogen Research (IHR), Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, QC, G9A 5H7, Canada

2023en

ABI

Аннотация

Abstract This work reports the synthesis of poly (aniline-co-4-nitroaniline) deposited on a three-dimensional nanostructured nickel (3D-Ni) film, where both layers were fabricated via potentiostatic electrodeposition. The obtained electrocatalyst exhibited excellent electrochemical activity for the Hydrogen Evolution Reaction (HER) with small overpotentials of − 195 and − 325 mV at − 10 and − 100 mAcm −2 , respectively, and a low Tafel slope of 53.3 mV dec −1 in seawater. Additionally, the electrocatalyst exhibited good stability after 72 h operation under a constant potential of − 1.9 V vs . RHE. The efficient HER performance of the as -prepared catalyst was found to originate from the synergy between the conducting polymer and three-dimensional nickel nanoparticles with a large electrochemical active surface area. Moreover, the results obtained from electrochemical impedance spectroscopy (EIS) measurements revealed that the presence of 3D-Ni layer improved the kinetics of HER by reducing the charge transfer resistance for the electrocatalyst.

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Идентификаторы

DOI: 10.1038/s41598-023-48355-3

Цитирования и источники

Цитирований: 12Использованных источников: 0

Показатели — AkademScholar